Shimming the Valves On A Crf450 [2008 Honda CRF450r][S2E6 Craigslist Build]

[@2006rm250]

Bruv, looks like the orientation of your tdc is wrong, cam lobes should be facing the intake side to be at tdc on compression stroke. You wouldn’t have gotten the feeler gauge in properly to get an accurate reading facing the way they were so that’s normal. Just improper reading because of orientation.

[@JourdonGulick]

Are you sure?? Bike runs 110% better than before the adjustment.

[@2006rm250]

Jourdon Gulick I’m shocked lol I doubled checked what I already knew with the service manual and unless you did some off camera trickery it def was the incorrect way lol

[@JourdonGulick]

Devon Gall I get everything you're saying. So then the shim adjustment I did just happened to work out? Granted, the new shim sizes were not that far from the old. I'll take the head off and triple check the valve clearances and make sure I'm TDC on the compression stroke. And make any adjustments if needed.

[@bajaxtreme3354]

Did you mix on the formula inches and mm!

[@cokecollector12]

Baja Xtreme I noticed that too. Tolerances In thou and measured in mm. My guess is that’s how they were labeled in the kit. Which is fucked.

[@fishhead89]

Jourdon, You have mixed your units when working out the new shim sizes. The tolerance is in Inches but you measured the actual shims in mm and which resulted in your measurements being incorrect. Also like others say you didn't have the piston at TDC which is why there was no gap to start with. Still appreciate you taking the time to do the video though.

[@JourdonGulick]

Yeah, too many mistakes. I feel like I should take this video down just in case anyone gets misinformed...

[@reggieholguin7907]

@@JourdonGulick But you said the bike ran 110 % better??🤔

[@QuoteFarm]

@@reggieholguin7907 it'll run with loose valve lash in fact it might feel great riding it. It's going to beat the hell outta the valves though.

[@ronhanish]

is it me or did he subtract where he was supposed to add??

[@MotoBuilds]

Great video, but for anyone watching, make sure your cam lobes are facing towards the rear of the motorcycle when taking measurements. Anytime you drop down one shim size after some time riding, it will run better, but for your measurements to be accurate and bike to run optimal, measure at tdc with lobes pointing back.

[@MotoBuilds]

Edit: I see someone already addressed this...

[@JourdonGulick]

Yeah, that other comment should be pinned. I guess the best way to learn is make some mistakes. Thanks for the info though. 🤘🤘

[@Dreadfullemon62]

Have you ever dropped a shim down the cam chain? If so what is the fix ?

[@mxrider2strokebraaap54]

Really nice video! 🤙 You deserve a lot more views and subs

[@willmore522]

Thanks man Finally build confidence to resell my 450 this video helped a lot thanks brother

[@JourdonGulick]

Awesome 🤘🤘

[@d.l.horton2093]

I would have left the shims a little loose since they tighten up over time instead of loosening up. Am I right or wrong about that? Would leaving the shims on the loose side of the tolerances be better?

[@JourdonGulick]

In this episode, I tackle shimming the valves. Aside from screwing up one thing, the process went pretty smooth. If anyone has any comments/recommendations/questions just let me know. THANKS FOR WATCHING!

[@chrisburnsed6349]

These engines are sooo simple. You made this WAAAY harder on yourself than it is. Also once you know what shims you need Most dealership parts departments will do a straight swap for your old ones providing there in nice condition. Costs $0.00. I build 5-6 of these engines a week. When doing this you want to be on the tightest side of the specs. The gap will slightly grow overtime with heat and wear, so this gives you a little longer time between needing a valve adjustment.

[@powayimports4175]

Chris Burnsed tighter tolerance? I thought it would be the opposite as the valve and seat wear making it tighter? At least that’s how the cars usually go. Love to learn more as i have an 08 450r and have not done this service yet. Thanks

[@precisionbay6899]

@@powayimports4175 yeah but he builds 6 of those a week 😆🤣😂😹😆

[@kieronfindlay6241]

It's on a compression stroke that's why you can't get the feeler gauges in.

[@JourdonGulick]

Yeah, fudged it up..

[@eljefe_1981]

Hey, would like to get in contact with you to find out where you get your parts from.

[@dixoncider7256]

very thorough video.

[@jasonlawrence8302]

great video, thanx

[@ReFleXions207]

Is the tolerance range the same on an 04 450r?

[@JourdonGulick]

I think the 04-08 is the same, but I'd double check.

[@alexeydon6022]

Anybody watching this should proceed with extreme caution. There are a lot of critical errors here. The cam shaft was not set to the correct position prior to removal. The calculation for working shim size actually has a slight error in it to start with. Then his calculation once measured he’s shims was a complete mess with combinations of metric and imperial measurements. Be aware that 0.010” = approx 0.25mm. It’s a big difference in numbers for your shim sizes.

[@1212kiko1212]

Qué putada , que te digan que puedes cambiar las pastillas sin levantar el árbol de levas , pero no te cuenten cómo 😇

[@osvaldtaljun8843]

When eps from Suzuki? :)

[@JourdonGulick]

Osvald the Drz125? Soon very soon

[@osvaldtaljun8843]

Yes, good :)

[@tonymontana9240]

Can I send you mine so you can work on it😬

[@reggieholguin7907]

yes mine too 05 450x :)

[@Mafiawelding]

I thought I was the only one who has a 2008 with an ass engine 😂

[@JourdonGulick]

🤣🤣🤣🤣

[@stevebloke5455]

Sorry but I didn't think much of this,,, seemed a lack of work ethic/ pride in the job done. as for the cam chain tensioner looked to be similar to the xr, use a small screw driver BIT and push in when wound back the bit hex will fit in the notches in the alloy housing and hold the tension for you, when its fitted to the engine pull the bit out and replace screw, job done

[@JourdonGulick]

Sorry you felt that way steve

[@NGPCO.]

Lazy